package demo15;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

/**
 * @author Huangjin
 * @version 1.0
 * describe:
 * @date 2023/3/7 18:36
 */
public class CopyDemo2 {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("3.jpg");
        FileOutputStream fos = new FileOutputStream("3_cp1.jpg");
        long start = System.currentTimeMillis();
        byte[] data = new byte[1024*10];
        fos.write(data);
        int len;
        while ((len=fis.read(data))!=-1){
            fos.write(data,0,len);
        }
        long end = System.currentTimeMillis();
        System.out.println("复制完毕！耗时："+(end-start)+"ms");

        fis.close();
        fos.close();
    }
}
